Inventions What plaything was invented by Joe McVicker in 1956? Etch-A-Sketch Silly Putty Lite-Brite Play-Doh Etch-A-Sketch Silly Putty Lite-Brite Play-Doh ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bifocal Lens? Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project? James B. Conant Leslie R. Groves Robert Oppenheimer Vannevar Bush James B. Conant Leslie R. Groves Robert Oppenheimer Vannevar Bush ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Jet Engine? Sir Frank Whittle Roger Bacon Gottlieb Daimler Lewis E. Waterman Sir Frank Whittle Roger Bacon Gottlieb Daimler Lewis E. Waterman ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the game Frisbee invented? 1890s 1920s 1870s 1900s 1890s 1920s 1870s 1900s ANSWER DOWNLOAD EXAMIANS APP
Inventions What drink was invented by Charles Leiper Grigg in 1929? Pepsi 7-Up Yoo-Hoo Hawaiian Punch Pepsi 7-Up Yoo-Hoo Hawaiian Punch ANSWER DOWNLOAD EXAMIANS APP
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